118821169880 has 128 divisors (see below), whose sum is σ = 319885977600. Its totient is φ = 38859781632.

The previous prime is 118821169757. The next prime is 118821169889. The reversal of 118821169880 is 88961128811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118821169889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 585809 + ... + 762111.

It is an arithmetic number, because the mean of its divisors is an integer number (2499109200).

Almost surely, 2^118821169880 is an apocalyptic number.

118821169880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118821169880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159942988800).

118821169880 is an abundant number, since it is smaller than the sum of its proper divisors (201064807720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118821169880 is a wasteful number, since it uses less digits than its factorization.

118821169880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176433 (or 176429 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 53.

The spelling of 118821169880 in words is "one hundred eighteen billion, eight hundred twenty-one million, one hundred sixty-nine thousand, eight hundred eighty".